Home / 18,579.79-25,640.04-10,081.95

Finding the Fourth Proportional to 18,579.79, 25,640.04 and 10,081.95

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Solution

The fourth proportional to 18,579.79, 25,640.04 and 10,081.95 is: 13,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.79 : 25,640.04 = 10,081.95 : x
  2. Step 2: Convert to fraction form
    18,579.79/25,640.04 = 10,081.95/x
  3. Step 3: Cross multiply
    18,579.79x = 25,640.04 × 10,081.95
  4. Step 4: Simplify right side
    18,579.79x = 258,501,601.28
  5. Step 5: Solve for x
    x = 258,501,601.28/18,579.79
  6. Step 6: Final answer
    x = 13,913.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.